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How to use EXPECT method of greeter Package

Best Mock code snippet using greeter.EXPECT

party-service_test.go

Source:party-service_test.go

...13	defer ctrl.Finish()14	// init structure which implements party.VisitorLister interface15	mockedVisitorLister := mock_party.NewMockVisitorLister(ctrl)16	// mockedVisitorLister called once with party.NiceVisitor argument would return []string{"Peter"}, nil17	mockedVisitorLister.EXPECT().ListVisitors(party.NiceVisitor).Return([]party.Visitor{{"Peter", "TheSmart"}}, nil)18	// mockedVisitorLister called once with party.NotNiceVisitor argument would return nil and error19	mockedVisitorLister.EXPECT().ListVisitors(party.NotNiceVisitor).Return(nil, fmt.Errorf("dummyErr"))20	// mockedVisitorLister implements party.VisitorLister interface, so it can be assigned in PartyService21	sp := &PartyService{22		visitorLister: mockedVisitorLister,23	}24	gotErr := sp.GreetVisitors(false)25	if gotErr == nil {26		t.Errorf("did not get an error")27	}28}29func TestPartyService_GreetVisitors(t *testing.T) {30	type fields struct {31		visitorLister *mock_party.MockVisitorLister32		greeter       *mock_party.MockGreeter33	}34	type args struct {35		justNice bool36	}37	tests := []struct {38		name    string39		prepare func(f *fields)40		args    args41		wantErr bool42	}{43		{44			name: "visitorLister.ListVisitors(party.NiceVisitor) returns error, error expected",45			prepare: func(f *fields) {46				f.visitorLister.EXPECT().ListVisitors(party.NiceVisitor).Return(nil, fmt.Errorf("dummyErr"))47			},48			args:    args{justNice: true},49			wantErr: true,50		},51		{52			name: "visitorLister.ListVisitors(party.NotNiceVisitor) returns error, error expected",53			prepare: func(f *fields) {54				// if given calls do not happen in expected order, the test would fail!55				gomock.InOrder(56					f.visitorLister.EXPECT().ListVisitors(party.NiceVisitor).Return([]string{"Peter"}, nil),57					f.visitorLister.EXPECT().ListVisitors(party.NotNiceVisitor).Return(nil, fmt.Errorf("dummyErr")),58				)59			},60			args:    args{justNice: false},61			wantErr: true,62		},63		{64			name: " name of nice person, 1 name of not-nice person. greeter should be called with a nice person first, then with not-nice person as an argument",65			prepare: func(f *fields) {66				nice := []string{"Peter"}67				notNice := []string{"Buka"}68				gomock.InOrder(69					f.visitorLister.EXPECT().ListVisitors(party.NiceVisitor).Return(nice, nil),70					f.visitorLister.EXPECT().ListVisitors(party.NotNiceVisitor).Return(notNice, nil),71					f.greeter.EXPECT().Hello(nice[0]),72					f.greeter.EXPECT().Hello(notNice[0]),73				)74			},75			args:    args{justNice: false},76			wantErr: false,77		},78	}79	for _, tt := range tests {80		t.Run(tt.name, func(t *testing.T) {81			ctrl := gomock.NewController(t)82			defer ctrl.Finish()83			f := fields{84				visitorLister: mock_party.NewMockVisitorLister(ctrl),85				greeter:       mock_party.NewMockGreeter(ctrl),86			}...

greeter_controller_test.go

Source:greeter_controller_test.go

1package controllers2import (3	"context"4	"fmt"5	. "github.com/onsi/ginkgo"6	. "github.com/onsi/gomega"7	appsv1 "k8s.io/api/apps/v1"8	corev1 "k8s.io/api/core/v1"9	apierrors "k8s.io/apimachinery/pkg/api/errors"10	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"11	"k8s.io/apimachinery/pkg/types"12	samplev1alpha1 "github.com/fengye87/bazel-go-sample/operator/api/v1alpha1"13)14var _ = Describe("GreeterController", func() {15	Context("for a Greeter object", func() {16		var greeterKey types.NamespacedName17		BeforeEach(func() {18			greeter := &samplev1alpha1.Greeter{19				ObjectMeta: metav1.ObjectMeta{20					GenerateName: "t-",21					Namespace:    "default",22				},23				Spec: samplev1alpha1.GreeterSpec{},24			}25			err := k8sClient.Create(context.Background(), greeter)26			Expect(err).ToNot(HaveOccurred())27			greeterKey = types.NamespacedName{28				Name:      greeter.Name,29				Namespace: greeter.Namespace,30			}31		})32		It("should create a greeter-server Deployment", func() {33			Eventually(func() *appsv1.Deployment {34				var greeterServerDeployment appsv1.Deployment35				greeterServerDeploymentKey := types.NamespacedName{36					Name:      fmt.Sprintf("%s-greeter-server", greeterKey.Name),37					Namespace: greeterKey.Namespace,38				}39				err := k8sClient.Get(context.Background(), greeterServerDeploymentKey, &greeterServerDeployment)40				if apierrors.IsNotFound(err) {41					return nil42				}43				Expect(err).ToNot(HaveOccurred())44				return &greeterServerDeployment45			}).ShouldNot(BeNil())46		})47		It("should create a greeter-server Service", func() {48			Eventually(func() *corev1.Service {49				var greeterServerService corev1.Service50				greeterServerServiceKey := types.NamespacedName{51					Name:      fmt.Sprintf("%s-greeter-server", greeterKey.Name),52					Namespace: greeterKey.Namespace,53				}54				err := k8sClient.Get(context.Background(), greeterServerServiceKey, &greeterServerService)55				if apierrors.IsNotFound(err) {56					return nil57				}58				Expect(err).ToNot(HaveOccurred())59				return &greeterServerService60			}).ShouldNot(BeNil())61		})62		It("should create a greeter-client DaemonSet", func() {63			Eventually(func() *appsv1.DaemonSet {64				var greeterClientDaemonSet appsv1.DaemonSet65				greeterClientDaemonSetKey := types.NamespacedName{66					Name:      fmt.Sprintf("%s-greeter-client", greeterKey.Name),67					Namespace: greeterKey.Namespace,68				}69				err := k8sClient.Get(context.Background(), greeterClientDaemonSetKey, &greeterClientDaemonSet)70				if apierrors.IsNotFound(err) {71					return nil72				}73				Expect(err).ToNot(HaveOccurred())74				return &greeterClientDaemonSet75			}).ShouldNot(BeNil())76		})77	})78})...

request_test.go

Source:request_test.go

1package grpc2import (3	"testing"4)5func TestMethodToGRPC(t *testing.T) {6	testData := []struct {7		service string8		method  string9		expect  string10	}{11		{12			"helloworld",13			"Greeter.SayHello",14			"/helloworld.Greeter/SayHello",15		},16		{17			"helloworld",18			"/helloworld.Greeter/SayHello",19			"/helloworld.Greeter/SayHello",20		},21		{22			"",23			"/helloworld.Greeter/SayHello",24			"/helloworld.Greeter/SayHello",25		},26		{27			"",28			"Greeter.SayHello",29			"/Greeter/SayHello",30		},31	}32	for _, d := range testData {33		method := methodToGRPC(d.service, d.method)34		if method != d.expect {35			t.Fatalf("expected %s got %s", d.expect, method)36		}37	}38}...

EXPECT

Using AI Code Generation

1import (2const (3func main() {4	conn, err := grpc.Dial(address, grpc.WithInsecure(), grpc.WithBlock())5	if err != nil {6		log.Fatalf("did not connect: %v", err)7	}8	defer conn.Close()9	c := pb.NewGreeterClient(conn)10	if len(os.Args) > 1 {11	}12	ctx, cancel := context.WithTimeout(context.Background(), time.Second)13	defer cancel()14	r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})15	if err != nil {16		log.Fatalf("could not greet: %v", err)17	}18	fmt.Println("Greeting: ", r.Message)19}20import (21const (22func main() {23	conn, err := grpc.Dial(address, grpc.WithInsecure(), grpc.WithBlock())24	if err != nil {25		log.Fatalf("did not connect: %v", err)26	}27	defer conn.Close()28	c := pb.NewGreeterClient(conn)29	ctx, cancel := context.WithTimeout(context.Background(), time.Second)30	defer cancel()31	stream, err := c.SayHelloStream(ctx, &pb.HelloRequest{Name: name})32	if err != nil {33		log.Fatalf("%v.SayHelloStream(_) = _, %v", c, err)34	}35	for {36		reply, err := stream.Recv()37		if err == io.EOF {38		}39		if err != nil {40			log.Fatalf("%v.SayHelloStream(_) = _, %v", c, err)41		}42		log.Printf("Greeting: %s", reply.Message

EXPECT

Using AI Code Generation

1import (2const (3func main() {4	conn, err := grpc.Dial(address, grpc.WithInsecure(), grpc.WithBlock())5	if err != nil {6		log.Fatalf("did not connect: %v", err)7	}8	defer conn.Close()9	c := pb.NewGreeterClient(conn)10	if len(os.Args) > 1 {11	}12	ctx, cancel := context.WithTimeout(context.Background(), time.Second)13	defer cancel()14	r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})15	if err != nil {16		log.Fatalf("could not greet: %v", err)17	}18	log.Printf("Greeting: %s", r.Message)19}20import (21const (22func main() {23	conn, err := grpc.Dial(address, grpc.WithInsecure(), grpc.WithBlock())24	if err != nil {25		log.Fatalf("did not connect: %v", err)26	}27	defer conn.Close()28	c := pb.NewGreeterClient(conn)29	ctx, cancel := context.WithTimeout(context.Background(), time.Second)30	defer cancel()31	stream, err := c.SayHelloAgain(ctx, &pb.HelloRequest{Name: name})32	if err != nil {33		log.Fatalf("%v.SayHelloAgain(_) = _, %v", c, err)34	}35	for {36		in, err := stream.Recv()37		if err == io.EOF {38		}39		if err != nil {40			log.Fatalf("Failed to receive a note : %v", err)41		}42		log.Printf("Greeting: %

EXPECT

Using AI Code Generation

1import (2type greeter struct {3}4func (g greeter) greet() string {5}6func TestGreet(t *testing.T) {7    g := greeter{name: "World"}8    if g.greet() != "Hello, World" {9        t.Error("Expected Hello, World")10    }11}12func ExampleGreet() {13    g := greeter{name: "World"}14    fmt.Println(g.greet())15}16func BenchmarkGreet(b *testing.B) {17    g := greeter{name: "World"}18    for i := 0; i < b.N; i++ {19        g.greet()20    }21}22import (23type greeter struct {24}25func (g greeter) greet() string {26}27func TestGreet(t *testing.T) {28    g := greeter{name: "World"}29    if g.greet() != "Hello, World" {30        t.Error("Expected Hello, World")31    }32}33func ExampleGreet() {34    g := greeter{name: "World"}35    fmt.Println(g.greet())36}37func BenchmarkGreet(b *testing.B) {38    g := greeter{name: "World"}39    for i := 0; i < b.N; i++ {40        g.greet()41    }42}43import (44type greeter struct {45}46func (g greeter) greet() string {47}48func TestGreet(t *testing.T) {49    g := greeter{name: "World"}50    if g.greet() != "Hello, World" {51        t.Error("Expected Hello, World")52    }53}54func ExampleGreet() {55    g := greeter{name: "World"}56    fmt.Println(g.greet())57}58func BenchmarkGreet(b *testing.B) {

EXPECT

Using AI Code Generation

1import (2const (3func main() {4	conn, err := grpc.Dial(address, grpc.WithInsecure(), grpc.WithBlock())5	if err != nil {6		log.Fatalf("did not connect: %v", err)7	}8	defer conn.Close()9	c := pb.NewGreeterClient(conn)10	ctx, cancel := context.WithTimeout(context.Background(), time.Second)11	defer cancel()12	r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})13	if err != nil {14		log.Fatalf("could not greet: %v", err)15	}16	fmt.Println("Greeting: ", r.Message)17}18import (19const (20func main() {21	conn, err := grpc.Dial(address, grpc.WithInsecure(), grpc.WithBlock())22	if err != nil {23		log.Fatalf("did not connect: %v", err)24	}25	defer conn.Close()26	c := pb.NewGreeterClient(conn)27	ctx, cancel := context.WithTimeout(context.Background(), time.Second)28	defer cancel()29	stream, err := c.SayHelloServerStream(ctx, &pb.HelloRequest{Name: name})30	if err != nil {31		log.Fatalf("could not greet: %v", err)32	}33	for {34		msg, err := stream.Recv()35		if err == io.EOF {36		}37		if err != nil {38			log.Fatalf("could not receive: %v", err)39		}40		fmt.Println("Greeting: ", msg.Message)41	}42}43import (

EXPECT

Using AI Code Generation

1import (2const (3func main() {4	creds, err := credentials.NewClientTLSFromFile(testdata.Path("ca.pem"), "x.test.youtube.com")5	if err != nil {6		log.Fatalf("Failed to create TLS credentials %v", err)7	}8	conn, err := grpc.Dial(address, grpc.WithTransportCredentials(creds))9	if err != nil {10		log.Fatalf("did not connect: %v", err)11	}12	defer conn.Close()13	c := pb.NewGreeterClient(conn)14	if len(os.Args) > 1 {15	}16	ctx, cancel := context.WithTimeout(context.Background(), time.Second)17	defer cancel()18	r, err := c.SayHello(ctx, &pb.HelloRequest{Name: name})19	if err != nil {20		log.Fatalf("could not greet: %v", err)21	}22	log.Printf("Greeting: %s", r.Message)23}24import (25const (26func main() {27	creds, err := credentials.NewClientTLSFromFile(testdata.Path("ca.pem"), "x.test.youtube.com")28	if err != nil {29		log.Fatalf("Failed to create TLS credentials %v", err)30	}31	conn, err := grpc.Dial(address, grpc.WithTransportCredentials(creds))32	if err != nil {33		log.Fatalf("did not connect: %v", err)34	}35	defer conn.Close()36	c := pb.NewGreeterClient(conn)

EXPECT

Using AI Code Generation

1import (2func TestGreeter(t *testing.T) {3    ctrl := gomock.NewController(t)4    defer ctrl.Finish()5    mockGreeter := mock.NewMockGreeter(ctrl)6    mockGreeter.EXPECT().Greet("world").Return("hello world")7    fmt.Println(mockGreeter.Greet("world"))8}9import (10type Greeter interface {11    Greet(name string) string12}13func TestGreeter(t *testing.T) {14    ctrl := gomock.NewController(t)15    defer ctrl.Finish()16    mockGreeter := mock.NewMockGreeter(ctrl)17    mockGreeter.EXPECT().Greet("world").Return("hello world")18    fmt.Println(mockGreeter.Greet("world"))19}20import (21type Greeter interface {22    Greet(name string) string23}24func TestGreeter(t *testing.T) {25    ctrl := gomock.NewController(t)26    defer ctrl.Finish()27    mockGreeter := mock.NewMockGreeter(ctrl)28    mockGreeter.EXPECT().Greet

EXPECT

Using AI Code Generation

1func main() {2    g := greeter{}3    g.EXPECT().Greet(gomock.Any()).Return("Hello World")4    s := g.Greet("World")5    fmt.Println(s)6}7func main() {8    g := greeter{}9    g.EXPECT().Greet(gomock.Any()).Return("Hello World").Times(2)10    s1 := g.Greet("World")11    s2 := g.Greet("World")12    fmt.Println(s1)13    fmt.Println(s2)14}15func main() {16    g := greeter{}17    g.EXPECT().Greet(gomock.Any()).Return("Hello World").Times(2)18    s1 := g.Greet("World")19    s2 := g.Greet("World")20    s3 := g.Greet("World")21    fmt.Println(s1)22    fmt.Println(s2)23    fmt.Println(s3)24}25func main() {26    g := greeter{}27    g.EXPECT().Greet(gomock.Any()).Return("Hello World").Times(2)28    s1 := g.Greet("World")29    s2 := g.Greet("World")30    s3 := g.Greet("World")31    fmt.Println(s1)32    fmt.Println(s2)33    fmt.Println(s3)34}

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